National Instruments VXI-MIO Series User Manual page 117

Multifunction i/o modules for vxibus
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Appendix C
Common Questions
Timing and Digital I/O
VXI-MIO Series User Manual
a. Enable the PFI5 line for output, as follows:
If you are using NI-DAQ, call
Select_Signal(deviceNumber, ND_PFI_5,
ND_OUT_UPDATE, ND_HIGH_TO_LOW).
If you are using LabVIEW, invoke the Route Signal VI with
signal name set to PFI5 and signal source set to AO Update.
b. Set up data acquisition timing so that the timing signal for
A/D conversion comes from PFI5, as follows:
If you are using NI-DAQ, call
Select_Signal(deviceNumber, ND_IN_CONVERT,
ND_PFI_5, ND_HIGH_TO_LOW).
If you are using LabVIEW, invoke the AI Clock Config VI
with clock source code set to PFI pin, high to low, and clock
source string set to 5.
c. Initiate analog input data acquisition, which will start only
when the analog output waveform generation starts.
If you are using NI-DAQ, call DAQ_Start with appropriate
parameters.
If you are using LabVIEW, invoke the AI Control VI with
control code set to 0 (start).
d. Initiate analog output waveform generation.
If you are using NI-DAQ, call WFM_Group_Control with
operation set to 1 (start).
If you are using LabVIEW, invoke the AO Control VI with
control code set to 0 (start).
12. What types of triggering can be hardware implemented on my
VXI-MIO Series module?
Digital triggering is supported by hardware on every
VXI-MIO Series module. In addition, the VXI-MIO-64E-1 and
VXI-MIO-64XE-10 support analog triggering in hardware.
13. What added functionality does the DAQ-STC make possible in
contrast to the Am9513?
The DAQ-STC incorporates much more than just 10 Am9513-style
counters within one chip. In fact, the DAQ-STC has the complexity
of more than 24 chips. The DAQ-STC makes possible PFI lines,
C-4
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